JPH08309679A - Handle connecting structure for hold cutting tool or the like - Google Patents

Abstract

PURPOSE: To form a handle connecting structure for a hold cutting tool so that mounting/demounting can be easily performed, by providing a pressing unit which presses an engaging protrusion, protrusively locked to a lock hole, sunk, to be able to extract a mounting handle part from a base end part of a hold half unit. CONSTITUTION: In the case of removing a mounting handle part 2 from a base end 1a of a hold half unit 1, a finger is hooked to an edge of a slide unit 5 by holding the mounting handle part 2, and when the slide unit 5 is moved to a connecting tip end side of the mounting handle part 2 by pressing the edge by the finger, a pressing unit 6 is moved to a connecting tip end side position of the mounting handle part 2 of a lock hole 4 where an engaging protrusion 3 is protrusively locked. This pressing unit 6 presses the engaging protrusion 3 sunk, to disengage the engaging protrusion 3 from the lock hole 4. In this condition, when the mounting handle part 2 is pulled toward the front side, the engaging protrusion 3 is hooked to the lock hole 4, without obstructing extraction, to come into contact with an internal peripheral surface of the mounting handle part 2 in a condition left as sunk, and the mounting handle part 2 is extracted from the base end of the hold half unit 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for connecting a handle such as a sandwich cutting tool.

[0002]

2. Description of the Related Art Conventionally, the problems to be solved by the invention
There are various gripping and cutting tools of this kind, but depending on the application, the length of the grip handle can be changed and used.
Considering a structure in which a separate mounting shank can be attached to and detached from the base ends of the gripping portions of the pair of gripping halves constituting the gripping cutting tool in an extended state, and further, the present inventor Considering that it is possible to easily attach / detach the handle connecting structure of the gripping cutting tool with a simpler structure, the handle connecting structure such as the sandwiching cutting tool of the present invention has been completed.

[0003]

The gist of the present invention will be described with reference to the accompanying drawings.

Clamping in which the mounting handle 2 is extended to the base end 1a of the sandwiching half 1 which can be opened and closed by axially attaching the cross-overlapping portions of the pair of sandwiching halfs 1 and is detachably connected and fixed. In a connecting structure of a handle such as a cutting tool, an engaging projection 3 which is urged to project is provided on a peripheral surface of a base end portion 1a of the sandwiching half body 1 so as to be capable of projecting and retracting, and the mounting handle portion 2 is sandwiching half. The engaging projection 3 is formed into a tubular body that can be connected to the base end portion 1a of the body 1, and when the tubular mounting handle portion 2 is fitted and connected to the base end portion 1a of the sandwiching half body 1. A locking hole 4 is provided on the inner peripheral surface of the mounting handle 2 so as to project and lock the mounting handle 2 to be fixedly connected to the base end 1a of the sandwiching half 1, and the outer peripheral surface of the mounting handle 2 is provided. The slide body 5 is slidably fitted along the longitudinal direction of the attachment handle portion 2, and when the slide body 5 is slid on the slide body 5 along the attachment handle portion 2, the locking hole 4 Clamping and cutting, characterized in that a pressing body 6 is provided which can push the engaging projection 3 that is projectingly locked to immerse it and pull out the attachment handle 2 from the base end 1a of the sandwiching half 1. The present invention relates to a connection structure of handles such as tools.

[0005]

When the cylindrical mounting handle 2 is fitted and connected to the base ends 1a of the pair of holding halves 1, the engaging projection 3 of the base ends 1a is pressed against the inner peripheral surface of the mounting handle 2. When the engagement protrusion 3 is depressed and is aligned with the engagement hole 4 on the inner peripheral surface of the attachment handle 2, the engagement protrusion 3 automatically protrudes into the engagement hole 4. Since the attachment handle portion 2 is locked and fixedly held in the base end portion 1a of the sandwiching half body 1 in a connected state, the connection and fixing can be easily performed.

A base end portion 1a of the sandwiching half body 1 holding the mounting handle portion 2
For further removal, when the slide body 5 of the attachment handle portion 2 which is fixedly connected to the base end portion 1a of the holding half body 1 is slid along the length direction of the attachment handle portion 2, Engaging projection 3 in which the pressing body 6 is projectingly locked in the locking hole 4
The engagement between the engagement hole 4 and the engaging projection 3 is released by immersing the engaging handle 3, and at this time, when the attachment handle 2 is pulled out from the base end 1a of the sandwiching half 1, the engaging projection 3 is released. Since the engaging projection 3 does not interfere with the pulling out of the mounting handle 2 while coming into contact with the inner peripheral surface of the mounting handle 2 in the depressed state, the mounting handle 2 can be easily pulled out. Become.

[0007]

EXAMPLE A clamping and cutting tool A of this example is located near the tip end on the side opposite to the base end 1a on the side of the gripping part where a pair of clamping halves 1 are fitted and connected to a cylindrical mounting handle 2. The cutting blade plate B is provided at the tip of each holding half body 1 with the blade edges facing each other.

Next, a concrete connection structure between the base end portion 1a of the sandwiching half body 1 and the attachment handle portion 2 which is the gist of the present invention will be described.

A screw hole 9 is formed through the base end portions 1a of the pair of sandwiching halves 1 at a position close to the shaft attachment portion in a direction orthogonal to the lengthwise direction of the sandwiching halves 1.

A screw rod of a screw 7 which can be screwed into the screw hole 9 is formed in a tubular shape having an open end, and a coil spring 8 is arranged and housed in the barrel of the screw rod. An engaging projection 3 having a flange at the bottom that can slide in and out of the cylinder of the screw rod and having a spherical tip is arranged and housed, and the engaging projection 3 is screwed by a coil spring 8 to a screw of a screw 7. It is configured to urge the rod toward the tip of the rod.

The peripheral edge of the tip of this cylindrical screw rod is bent inward to narrow the diameter of the cylinder, and the inner peripheral surface of the tip of the screw rod having the smaller diameter is urged to project toward the tip of the screw rod. The bottom of the protrusion 3 is hooked so that the engagement protrusion 3 cannot be pulled out from the tip of the screw rod. The engagement protrusion 3 for biasing the protrusion is retractable against the biasing force of the coil spring 8. It is possible to configure.

That is, by screwing the screw 7 provided with the engaging projection 3 into the screw holes 9 of the respective base end portions 1a of the pair of holding half bodies 1, the base end portion 1a of the holding half body 1 is screwed. Engagement protrusion 3 from the peripheral surface
Is urged so that it can be projected and retracted.

A predetermined length along the length direction of the attachment handle 2 is provided on the peripheral surface of the cylindrical attachment handle 2 which is fitted and connected to the base end portion 1a of the holding half body 1 near the connecting portion side. Of the long window is formed so as to penetrate therethrough, and the long hole is formed by the engaging projection 3 and the engaging hole 4 is projected and locked.
And

A ring-shaped slide body 5 is fitted to the attachment handle portion 2 toward the connecting portion side so as to cover the locking hole 4, and the slide body 5 is arranged in the lengthwise direction of the attachment handle portion 2. Provide along the slide. In this embodiment, the slide body 5 is formed to have a slightly thick shape, and
A finger can be easily placed on the edge of the slide body 5 so that the slide body 5 can be slid and operated by easily pushing it with the finger.

A screw hole 10 is formed through the peripheral surface of the slide body 5, and a screw-like pressing body 6 having a spherical tip at the screw hole 10 is screwed in from the outside to lock the spherical surface. The leading end of the sliding body 5 is projected from the inner peripheral surface of the slide body 5, and the protruding tip of the pressing body 6 is inserted and locked into the long window-shaped locking hole 4 from the outside of the attachment handle portion 2 to slide the sliding body 5. By moving, the projecting tip of the pressing body 6 moves in the long window-shaped locking hole 4, and the engaging projection 3 is projected and locked in the locking hole 4 from the inside of the attachment handle 2. At this time, the slide body 5 slides to push the pressing body 6.
When the position of is moved so as to overlap the position of the engaging projection 3, the engaging projection 3 is pressed by the pressing body 6 to be sunk, and the engaging projection 3 is engaged with the locking hole 4. It is designed to be removed. Since the screw hole 10 is formed through the slide body 5 in this manner, the screw hole 10 serves as a reference for the position of the locking hole 4,
By fitting the mounting handle 2 onto the base end 1a of the sandwiching half 1 so that the screw hole 10 is aligned with the engaging projection 3, the engaging projection 3 can be easily locked in the locking hole 4. It will be. Further, since both the tip of the engaging projection 3 and the tip of the pressing body 6 are formed in a spherical shape, the engaging projection 3 and the pressing body 6 are engaged with each other by the pressing body 6 without being caught. The engaging projection 3 that is projectingly locked in the stop hole 4 is likely to be sunk.

Therefore, when the mounting handle 2 is held by hand and fitted on the base end 1a of the holding half body 1, the engaging projection 3 of the base end 1a is pressed against the inner peripheral surface of the mounting handle 2. The slide body 5 on the side of the connecting tip of the attachment handle 2 is aligned with the engaging projection 3 by using the screw hole 10 of the slide body 5 as a guide. When the slide body 5 is slid to the front side which is the base end side of the attachment handle 2 by hooking a finger on the edge of the attachment handle 2, the engagement projection 3 is connected to the attachment handle 2 of the attachment handle 2 as shown in FIG. The projecting engagement is carried out at the position of the engaging hole 4 and the engaging handle 2 is connected and fixed to the base end 1a of the sandwiching half 1 by the engagement between the engaging hole 4 and the engaging projection 3. It will be.

Further, the base portion 1 of the holding half body 1 holding the mounting handle portion 2
When the slide body 5 is detached from a, the attachment handle 2 is held and the finger is put on the edge of the slide body 5, and the edge is pressed by the finger to move the slide body 5 to the connecting tip side of the attachment handle 2, as shown in FIG. As described above, the pressing body 6 moves to the position of the connecting tip side of the attachment handle 2 of the locking hole 4 in which the engaging projection 3 is projectingly locked, and the pressing body 6 presses the engaging projection 3. Engagement protrusion 3
Is disengaged from the locking hole 4, and when the mounting handle 2 is pulled toward the front side while the slide body 5 is positioned at the connecting tip side of the mounting handle 2, the engaging projection 3 is caught in the locking hole 4 and pulled out. It will come into contact with the inner peripheral surface of the mounting handle portion 2 in a state of being sunk without any hindrance, and the base end portion 1 of the sandwiching half 1 will hold the mounting handle portion 2.
It can be pulled out from a.

That is, the base 1 of the holding half 1 holding the mounting handle 2
By fitting the engaging projection 3 and the locking hole 4 to each other and sliding the slide body 5 toward the front side with a finger, the mounting handle portion 2 is held at the base end portion 1a of the sandwiching half body 1. It can be connected and fixed to, and has the mounting handle 2 in this connected and fixed state, and the slide body 5 is pushed and slid to the connecting tip side of the mounting handle 2 with a finger, and the mounting handle 2 is simply pulled to the front side for mounting. It is very easy to use because it has a structure in which the handle 2 can be pulled out from the holding half body 1. Moreover, since the slide body 5 is formed in a slightly thick shape, it is easy to hook a finger on the edge of the slide body 5, Thus, excellent practical effects such as easy sliding of the slide body 5 are exhibited.

Further, when the inner peripheral edge of the tip of the attachment handle 2 is formed into an inclined edge in which the inner diameter of the attachment handle 2 becomes larger toward the tip side, the base end portion of the half body 1 for sandwiching the attachment handle 2 is formed. When fitting and connecting to the mounting handle 1a, the engaging protrusion 3 of the base end portion 1a of the holding half body 1 is smoothly retracted without being caught on the tip edge of the mounting handle 2 and the mounting handle 2 is fitted. It is preferable because it is easy.

When the engaging projection 3 is locked in the locking hole 4, the base end 1a of the holding half 1 is attached to the tip of the attachment handle 2 from the position where the tip of the attachment handle 2 is located. It is preferable to form the diameter of the portion 2 such that the portion 2 cannot be fitted and moved, because the engaging projection 3 can be reliably locked in the locking hole 4 without pushing the attachment handle 2 too much.

Further, when the reference line indicating the limit point of the sliding movement of the slide body 5 is formed on the peripheral surface of the mounting handle portion 2, the engaging projection 3 is surely locked in the locking hole 4. It is preferable because it can be confirmed whether or not the engaging projection 3 is disengaged from the locking hole 4.

[0022]

Since the present invention is constructed as described above, when the mounting handle is fitted to the base end of the sandwiching half, the engaging projection of the base end is attached to the inner peripheral surface of the mount. It is pressed and sunk, and by just aligning the sunk engagement protrusion with the engagement hole of the mounting handle, this engagement protrusion automatically protrudes and engages with the engagement hole. Since the mounting handle is connected and fixed to the base end of the sandwiching half, the connecting and fixing can be performed very easily, and it is provided on the outer peripheral surface of the mounting handle in this connected and fixed state. When the slide body is slid along the length direction of the attachment handle, the pressing body of the slide body presses the engaging projection that is projectingly locked in the locking hole so that the engaging projection is sunk. Since the locking of the abutment body to the locking hole will be released, it is very easy to remove the mounting handle from the base end of the sandwiching half. The connecting structure of the handle, such as clamping the cutting tool Xiu was very easy to use and practicality, such as possible.

Therefore, it is possible to change the length of the handle in accordance with the intended use, and the handle connecting structure such as an excellent pinching and cutting tool can be attached and detached and connected very easily.

[Brief description of drawings]

FIG. 1 is an external front view of the present embodiment.

FIG. 2 is an exploded front view of the present embodiment.

FIG. 3 is an explanatory cutaway view of essential parts showing a fixed state of a mounting handle portion of the present embodiment.

FIG. 4 is an explanatory cutaway view of an essential part showing a fixing release state of the attachment handle portion of the present embodiment.

[Explanation of symbols]

 1 Clamping half body 1a Base end part 2 Mounting handle part 3 Engaging projection body 4 Locking hole 5 Slide body 6 Pressing body

Claims (1)

[Claims] 1. A sandwich cutting tool for detachably connecting and fixing a mounting handle portion to an extended state at a base end portion of a sandwiching half body which is pivotally attached to a cross-overlapping portion of a pair of sandwiching half bodies and can be opened and closed. In the connecting structure of the handle, the engaging handle is provided on the peripheral surface of the proximal end portion of the sandwiching half body so as to project and retract, and the mounting handle portion is provided at the proximal end portion of the sandwiching half body. When configured into a connectable tubular body, and when this tubular mounting handle is fitted and connected to the base end of the sandwiching half,
A locking hole is provided on the inner peripheral surface of the mounting handle so that the engaging projection protrudes and locks so that the mounting handle can be connected and fixed to the base end of the sandwiching half. The slide body is slidably fitted along the length of the mounting handle to the slide body, and when the slide body is slid on the slide body along the mounting handle, the slide body is projected and locked in the locking hole. A structure for connecting a handle such as a holding and cutting tool, which is characterized in that a pressing body is provided which presses the engaging protrusion so that the engaging protrusion is sunk and the attachment handle can be pulled out from the base end of the holding half.