JP3218500U - Face marking device - Google Patents

Abstract

A face surface marking device capable of safely marking a face surface during excavation is provided.
A face marking device 100 for marking a face during excavation using a spray can SC, a long handle 2 provided with a spray can mounting portion 4 for attaching the spray can SC to a tip 2a, and a long handle The spray can operating mechanism 3 pushes the spray push part SC1 of the spray can SC attached to the spray attaching part 4 by the operation part 32 provided on the base end side of 2.
[Selection] Figure 2

Description

  The present invention relates to a face surface marking device for marking a face surface during excavation such as a tunnel.

  The face of the forefront of excavation in tunnel construction is a very dangerous place where rocks and earth and sand may collapse. In tunnel construction, a hole is made in the excavation surface (face surface) of this face and charged with gunpowder, and the ground is crushed by the destructive force of the gunpowder and extended, for example, by 1 m.

  At this time, as shown in Patent Document 1, a spray can is used to mark a place where a hole for loading explosives is made on the face, and the place is drilled by a drilling machine.

  However, when marking the face, it is necessary for a person to approach the face and there is a risk of injury due to falling rocks. In addition, after digging a tunnel, it is protected by spraying cement so that the natural ground does not collapse, but if the next excavation work is advanced before the cement is completely dried, the cement will fall. There is also a fear of coming.

JP 2004-060402 A

  Therefore, the present invention has been made to solve the above-described problems, and the main object is to safely perform marking on the face surface during excavation.

  That is, the face surface marking device according to the present invention is a face surface marking device for marking the face surface during excavation using a spray can, and a long handle provided with a spray can attachment portion for attaching the spray can at a tip portion and And a spray can operating mechanism that pushes a spray push portion of a spray can attached to the spray attachment portion by an operation portion provided on the base end side of the long handle.

  According to such a face surface marking device, the spray can mounting part is provided at the long end of the handle, and the spray push part of the spray can can be pushed by the operation part provided on the base end side. It is possible to mark from a different place (for example, about 1 to 3 m). Therefore, it is possible to safely perform marking on the face during excavation where rockfalls or the like are likely to occur.

As a specific embodiment of the spray can operation mechanism, the spray can operation mechanism is provided so as to be movable between a push-in position where the spray push part is pushed and a spaced position apart from the spray push part. It is desirable to have a movable body and a drive section that moves the movable body from the separated position to the pushed-in position by operating the operation section.
Here, the drive unit may be a power transmission mechanism such as a link mechanism that mechanically transmits the operation amount of the operation unit to the movable body, or an electric component such as a motor that is operated by the operation of the operation unit. It may be used.

  If marking is performed from a location away from the face, the spraying direction of the spray can is difficult to understand, and the marking position may be shifted. In order to solve this problem suitably, it is desirable that a sighting device for confirming the marking position by the spray can is provided.

  In order to be able to confirm the marking position intuitively with a simple structure, it is desirable that the sighting device is a rod-shaped body, and its axial direction is provided in the same direction as the spray direction of the spray can. .

  The sighting device is preferably provided so as to be slidable along the spraying direction of the spray can. At this time, the marking position can be reliably confirmed by bringing the tip of the sighting device into contact with the corresponding portion of the face.

  In order to enable the position adjustment of the sighting device while holding the face surface marking device, it is desirable to include a slide mechanism for sliding the sighting device by the operation unit provided on the proximal end side of the long handle. .

  According to the present invention configured as described above, marking on the face surface during excavation can be performed safely.

It is a figure which shows the use condition of the face surface marking instrument in one Embodiment of this invention. It is a perspective view which shows typically the structure of the face surface marking instrument in the embodiment. It is a top view which shows the structure of the spray can attachment part in the embodiment. It is a schematic diagram which shows the structure of the elongate handle | tip part in the same embodiment. It is a schematic diagram which shows each state of the sighting device in the embodiment.

  An embodiment of the present invention will be described with reference to the drawings.

  As shown in FIG. 1, the face marking instrument 100 according to the present embodiment is an instrument for marking a face X during excavation such as a tunnel using a spray can SC. The marking on the face X is performed to indicate a drilling position where a blasting hole is opened by a drilling machine.

  Specifically, as shown in FIG. 2, the face marking device 100 includes a long handle 2 in which a spray can mounting portion 4 for attaching a spray can SC is provided at the distal end portion 2 a and an operation provided on the proximal end side of the long handle 2. The spray can operating mechanism 3 that pushes the spray push portion SC1 of the spray can SC attached to the spray attaching portion 4 by the portion 32 is provided.

  The long handle 2 has a straight tube shape, and its length is 1 to 3 m. The length is not limited to this, and may be longer. Moreover, you may have an expansion-contraction mechanism which makes the length of the long handle 2 variable.

  The tip 2a of the long handle 2 is provided with a spray can mounting portion 4 for detachably mounting the spray can SC. As shown in FIG. 2, the spray can mounting portion 4 fixes the spray can SC by tightening the upper end portion of the spray can SC. Thus, by fixing the upper end part of spray can SC, spray can SC can be fixed stably and marking can be performed stably.

  Specifically, as shown in FIG. 3, the spray can mounting portion 4 has a ring shape and includes two dividing elements 41 and 42. One split element 41 has a semi-ring shape, and is fixed to the distal end portion 2 a of the long handle 2. The other split element 42 has a semi-ring shape and is rotatably connected to one circumferential end of the one split element 41 by a hinge 43. The two split elements 41 and 42 are provided with flat plate portions 411 and 421 at the other circumferential end, and the spray can SC is fastened and fixed by fastening the two flat plate portions 411 and 421 with bolts 44. be able to. By adjusting the tightening degree of the bolt 44, the size of the spray can SC to be used can be accommodated.

  In FIG. 2, the spray can mounting portion 4 is provided so that the axial direction of the long handle 2 and the spray can SC are fixed in an orthogonal state. You may comprise 4 so that inclination is possible.

  As shown in FIG. 2, the spray can operation mechanism 3 includes a movable body 31 for pushing the spray push part SC <b> 1 of the spray can SC, an operation section 32 for operating the movable body 31, and an operation of the operation section 32. And a drive unit 33 that moves the movable body 31.

  The movable body 31 is movably provided between a push-in position P (FIG. 4A) where the injection push part SC1 is pressed and a separation position Q (FIG. 4B) which is separated from the injection push part SC1. Yes. Specifically, the movable body 31 is rotatable between the push-in position P and the separated position Q by the rotation shaft 21 provided at the distal end portion 2 a of the long handle 2. The movable body 31 is normally biased to the separation position Q by an elastic body 34 (not shown).

  The operation unit 32 is a lever that is provided at the base end 2b of the long handle 2 and is operated by being gripped by an operator.

  The drive unit 33 moves the movable body 31 from the retracted position Q to the pushed-in position P when the operation unit 32 is gripped. The drive unit 33 of the present embodiment is a power transmission mechanism using, for example, a link mechanism or a rope that mechanically transmits the operation amount of the operation unit 32 to the movable body 31.

  And the face marking instrument 100 of this embodiment is provided with the sight 5 for confirming the marking position by the spray can SC, as shown in FIG.

  The sight 5 is a rod-shaped body, and its axial direction is provided in the same direction as the spray direction A of the spray can SC. The spray can SC of the present embodiment is provided orthogonal to the axial direction of the long handle 2, and the axial direction and the injection direction A are oriented in the same direction. It is provided to be in the same direction as the direction. Moreover, the front-end | tip part 5a of the sight 5 is extended ahead of the spraying direction rather than the spray can SC, and the front-end | tip part 5a is comprised so that the face X can be contacted.

  And the sight 5 is provided so that a slide movement is possible along the injection direction A of the spray can SC. Specifically, the face-face marking device 100 includes a slide mechanism 6 for sliding the sight 5 by an operation unit 62 provided on the proximal end side of the long handle 2.

  The slide mechanism 6 includes a movable part 61 that is connected to the base end part 5 b of the sight 5 and is movable along the long handle 2, an operation part 62 for operating the movable part 61, and a movable part 61. And an operating portion 62, and a fixed portion 64 that is provided on the tip side of the movable portion 61 and guides the sight 5.

  The movable portion 61 has a ring shape provided so as to surround the outer peripheral surface of the long handle 2. And as shown in FIG. 5, the movable part 61 slides back and forth through a connection part by moving the operation part 62 back and forth along the long handle 2. The fixed part 64 is fixed to the long handle 2 and has a cylindrical part 641 through which the sight 5 is slidably inserted. The sight 5 is parallel to the long handle 2 by the movable part 61 and the fixed part 64.

  The slide mechanism 6 allows the operator to slide the operation unit 62 back and forth while holding the face marking device 100, thereby moving the sight 5 in the front-rear direction with respect to the spray can SC.

  According to the face marking device 100 of the present embodiment configured as described above, the spray can mounting portion 4 is provided at the distal end portion 2a of the long handle 2, and the spray can SC is sprayed by the operation portion 32 provided on the base end side. Since push part SC1 can be pushed, it can mark from the place (for example, about 1-3m) away from face X. Therefore, it is possible to safely perform marking on the face X during excavation, where falling rocks are likely to occur.

  The present invention is not limited to the above embodiment.

  For example, in the above-described embodiment, the long handle 2 has a straight tubular shape, but may be bent in the middle.

  The sighting device 5 may be an optical device such as an LED or a laser in addition to the rod-shaped body.

  In addition, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

100 ... Face face marking device X ... Face face SC ... Spray can SC1 ... Injection push part 2 ... Long handle 2a ... Tip part 2b ... Base end part 3 ... Spray Can operation mechanism 32 ... operation part 4 ... spray can attachment part A ... spraying direction P of spray can ... push-in position Q ... separation position 31 ... movable body 33 ... drive part 5 ... sighting device 6 ... slide mechanism

Claims (6)

A face surface marking device for marking a face surface during excavation using a spray can,
A long handle provided with a spray can attachment portion for attaching the spray can at the tip,
A face marking device, comprising: a spray can operation mechanism that pushes a spray push portion of a spray can attached to the spray attachment portion by an operation portion provided on the base end side of the long handle. The spray can operating mechanism is
A movable body provided so as to be movable between a push-in position where the spray push part is pushed and a spaced position apart from the spray push part;
The face marking device according to claim 1, further comprising: a drive unit that moves the movable body from the separated position to the pushed-in position by an operation of the operation unit.   The face marking device according to claim 1 or 2, wherein a sighting device for confirming a marking position by the spray can is provided.   The face marking device according to claim 3, wherein the sighting device is a rod-like body, and the axial direction thereof is provided in the same direction as the spraying direction of the spray can.   The face marking device according to claim 4, wherein the sighting device is provided so as to be slidable along a spraying direction of the spray can.   The face surface marking device according to claim 5, further comprising a slide mechanism for sliding the sighting device by an operation unit provided on a base end side of the long handle.