JPH0135656Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to tall branch shears used for picking fruits such as apples and persimmons or pruning tree branches, and the long handle is detachable at the middle part. It can be separated to make it convenient to carry and store.

By the way, Takaeda scissors, as shown in Figure 1,
Since the scissors 2 supported at the front end of the handle 1 are operated by the operating mechanism 3 on the hand side, the handle is formed of a tubular body and a transmission member such as a rod 4 is inserted inside. It has to be done. Therefore, in order to removably divide this pipe body in the middle, it is necessary to connect and disconnect the internal rod at the same time as the pipe body. Conventionally, as a means for connecting and detaching the rod, as shown in, for example, Japanese Utility Model Application Publication No. 119673/1983, one of the female and male fittings provided at the joint end of the rod is
When connecting and disconnecting the tube body, this is done by moving an operating pin inserted through the tube body toward the inside and outside of the tube back and forth along an elongated hole in the axial direction, and according to this method, a spring is attached to the female fitting. Not only does it require many parts such as balls and balls, but it also increases the overall weight.
Moreover, it has the disadvantage that it is difficult to ensure reliable operation.

This invention eliminates these disadvantages,
That is, instead of operating the female and male fittings for connecting and disconnecting rods from the outside of the tube body as in the conventional method, one of the two tube bodies is connected in the circumferential direction with the front and rear tube inner ends connected in the axial direction. When the scissors are rotated toward the ends and connected, the internal rods are connected at the same time by the female and male metal fittings provided at the inner end of the connection. It is characterized by what it did.

That is, a rod is inserted into a handle formed of a tubular body so as to be movable in the axial direction, and a fixed piece of the scissors and a movable piece that can be opened and closed relative to the fixed piece are provided at each front end of the handle and rod. At the same time, a fixed rod and an operating rod constituting the operating mechanism are connected to the rear ends of the handle and rod, respectively, and the operating rod is moved in the closing direction against the urging force of the ammunition in the opening direction. In a pair of high branch scissors having a long handle, the operation of which is transmitted to the movable piece of the scissors through the rod when operated, the handle and the rod are divided into a front part and a rear part at the middle part. A fitting part into which the other end is fitted is provided on one of the mutually opposing ends of the front handle and rear handle, and a pin fixed to the circumferential surface of the other end is provided in the fitting part. A holding cylinder having a guide groove formed therein for guiding from the axial direction to the circumferential direction, and provided with a notch on the outside of the fitting portion for inserting the pin introduced to the circumferential tip of the guide groove in the axial direction. are mated so that they can move forward and backward.

On the other hand, the opposing ends of the two divided rods are restrained in the rotational direction with respect to the front and rear handles, and the fitting operation is caused by the relative movement of the two handles in the axial direction, and the subsequent relative rotation is performed. Connects a pair of male and female locking fittings that are fitted and locked to each other.

The above-mentioned fitting part may be provided at either the rear end of the divided front rod or the front end of the rear handle, and similarly, the pair of male and female locking fittings may be provided at the rear end of the divided front rod or at the front end of the rear rod. A female or male metal fitting may be connected to either of the front ends of the rear rod.

According to the above configuration, when connecting the divided handles when using the high branch scissors, the circumferential surface of the end of the other handle is inserted into the guide groove of the fitting part provided at the end of one handle. The ends of both handles are fitted together while introducing the pin fixed therein, and when they are fitted to a predetermined position, both handles are rotated relative to each other and the pin is introduced in the circumferential direction along the guide groove. . When the pin is introduced to the circumferential tip of the guide groove, the holding cylinder fitted to the outside of the fitting part so as to be freely retractable is advanced, and the pin is inserted into the notch provided in the holding cylinder. intervene. As a result, the pin is fixed to the circumferential tip of the guide groove, and the relative rotation of the front and rear handles that are fitted together is restricted, ensuring that both handles are securely connected. will be done.

On the other hand, when the ends of both handles are moved relative to each other in the axial direction in order to fit them to a predetermined position during the connection operation of the handles as described above, the front and rear parts inserted into the insides of both handles respectively. The pair of male and female locking fittings provided at the end of the rod also move relative to each other in the axial direction, and the male fitting is inserted into the female fitting, and when the two handles are further rotated relative to each other, these two fittings move relative to each other in the axial direction. Since the locking metal fittings are restrained in the rotational direction with respect to the front handle and the rear handle, both metal fittings also rotate relative to each other and are locked with each other. This causes the front rod and the rear rod to be connected in a manner capable of transmitting axial motion.

In this state, if the operating rod of the operating mechanism at the rear end of the rear handle is operated against the force of the bullet, the operation will be transmitted to the scissors at the front end of the front handle via the rear rod and front rod. This signal is transmitted to the movable piece, and the movable piece is swung in the closing direction relative to the fixed piece to perform the cutting operation.

Embodiments of the present invention shown in the drawings will be described below.

In Figures 1 and 2, reference numeral 1 denotes a handle formed of a tubular body and detachably divided into a front handle 1a and a rear handle 1b at the middle part, and scissors 2 are attached to the front end of the front handle 1a. A fixing piece 2a making up the operating mechanism 3 is connected to and supported by a fixing rod 3a making up the operating mechanism 3 at the rear end of the rear handle 1b. Reference numeral 4 denotes a rod inserted into the handle 1, and the front end of the rod 4 is connected to a movable piece 2b which is pivotally connected to the fixed piece 2a of the scissors 2 so as to be openable and closable.
At the same time, the rear end of the rod 4 is fixed 3' to an operating rod 3c which is pivotally connected to the fixed rod 3a of the operating mechanism 3 so as to be openable and closable. When the scissors 3c is operated in the closing direction against the bullet 3b mounted between it and the fixed rod 3a, the rod 4 moves toward the front within the handle 1, and the scissors 2
The movable piece 2b is configured to swing in the closing direction relative to the fixed piece 2a. Further, the rod 4 is divided into a front rod 4 and a rear rod 4 near the dividing part of the handle 1, and a pair of male and female locking fittings 5 and 6 are provided at opposite ends thereof, respectively. connected. Reference numeral 7 denotes a connecting tube that is fitted and fixed to the outer periphery of the front end of the rear handle 1b, and extends forward to fit and join the rear end of the front handle 1a in a butt-like manner; As shown in FIG. 3, an L-shaped guide groove 7a is formed on the circumferential surface of the connecting tube 7 and is open at the front end and bent toward one side in the circumferential direction at the rear in the axial direction. Further, a pin 8 is firmly planted on the outer periphery of the rear end of the front handle 1a that is fitted into the connecting tube 7, and while the pin 8 is introduced into the guide groove 7a of the connecting tube 7, the front handle If the rear end of 1a is inserted into the connecting tube 7, both the front and rear handles 1
When the opposing end surfaces of a and 1b are butted together, the pin 8 reaches the rear end in the axial direction of the guide groove 7a, and in this state, if both handles 1a and 1b are relatively rotated to one side by a certain angle, the The pin 8 is designed to be introduced up to the circumferential tip of the guide groove 7a.

On the other hand, as shown in FIG. 8, among the pair of male and female locking fittings 5 and 6 connected to the opposite ends of the front rod 4 and rear rod 4, the female locking fitting 5 is U-shaped. The fitting 5 has a through hole 5a on the surface facing the rear rod 4 and a hook portion 5b on both sides. It is formed. The male locking fitting 6 also includes a head body 6b that protrudes forward from a base body 6a connected to the front end of the rear rod 4.
is provided, and the head body 6b enters into the metal fitting 5 through the through hole 5a of the female side locking metal fitting 5 in the axial direction as the two locking metal fittings 5 and 6 approach, and both of the following two locking metal fittings 5 and 6, it can be engaged with the hook portion 5b. Furthermore, side gaps 5' and 6' are formed on both sides of these male and female locking fittings 5 and 6, respectively, and these side gaps 5' and 6' The locking fittings 5 and 6 are engaged with longitudinally extending protrusions 1' and 1' formed by recessing the peripheral surfaces of the part 1a and the rear handle 1b, respectively, so that the locking fittings 5 and 6 are engaged with the front handle 1a and the rear handle 1b. It is restrained in the rotational direction with respect to 1b and can only move in the axial direction. Here, the pin 8 is inserted into the guide groove 7a.
When the pin 8 is introduced in the axial direction, the head body 6b of the male locking metal fitting 6 passes through the through hole 5a of the female side locking metal fitting 5, and when the pin 8 is then introduced to the circumferential tip of the guide groove 7a, the head body 6b passes through the through hole 5a of the female side locking metal fitting 5. These dimensions and positional relationships are determined so that the member 6b is engaged with the hook portion 5b of the female side locking fitting 5. In addition, 10 is the connection tube 7
A holding tube 10 is fitted to the rear outer periphery of a collar 7b at the front end, and the holding tube 10 has a protrusion 7c provided on the connecting tube 7 in an axial elongated hole 10a provided on the circumferential surface.
By facing the connection tube 7, it is restrained in the rotational direction and can be moved back and forth within a certain range, and the front portion is provided with a periphery of the guide groove 7a when it is advanced toward the flange 7b. Cut 1 for intervening in the axial direction with the pin 8 introduced up to the tip
0b is formed. Further, an elastic condensation force is applied to the rear end portion 10c of the holding tube 10, and when the rear end portion 10c is advanced to a position where the pin 8 is inserted into the notch 10b, the rear end portion 10c By being located beyond and in front of the diameter portion 7d, the holding tube 10 is prevented from accidentally retreating.

According to the above configuration, as shown in FIG. 3, the front handle 1a and the rear handle 1b are
The rear end of a is inserted into the connecting tube 7 extending to the front end of the rear handle 1b, and the pin 8 of the front handle 1a is inserted into the guide groove 7a provided in the connecting tube 7 in the axial direction. then introduce the front handle 1a and the rear handle 1
If the front handle 1a is rotated relative to the rear handle 1b in a predetermined direction at the time when the opposing end surfaces of the handles 1a and 1a are brought into contact with each other, the pin 8 is introduced to the circumferential tip of the guide groove 7a, and both handles 1a , 1b cannot be separated in the axial direction. At this time, in the pair of male and female locking fittings 5 and 6 provided at the opposing ends of the front rod 4 and the rear rod 4, which are inserted into the inside of the front handle 1a and the rear handle 1b, first, both handles are 1a, 1b
Due to the relative movement in the axial direction accompanying the fitting operation of Due to the relative rotation, the head body 6b engages with the hook portion 5b of the female side locking fitting 5, and the front rod 4 and the rear rod 4 are connected in a state where force can be transmitted in the axial direction. It turns out.

Then, in this state, the holding cylinder 10 fitted on the outer periphery of the connecting cylinder 7 is advanced, and the guide groove 7 is moved forward.
If the pin 8, which has been introduced up to the circumferential tip of the guide groove 7a, is inserted into the notch 10b provided in the holding cylinder 10, the pin 8 will be fixed to the circumferential tip of the guide groove 7a. , the pin 8 and the holding cylinder 10
The front handle 1a and the rear handle 1b are prevented from relative rotation through the
b are completely connected, and the front rod 4 and rear rod 4 are also kept connected.

When the front handle 1a and the mouth handle 1b are connected in this way, the operating rod 3c of the operating mechanism 3 provided at the rear end of the rear handle 1b is fixed against the biasing force of the ammunition 3b. By operating the rod 3a side,
Movable piece 2 of scissors 2 provided at the front end of the front handle 1a
b is swung toward the fixed piece 2a via the rod 4 to perform the cutting operation.

As described above, according to the present invention, in a pair of high branch scissors in which a long handle is divided into front and rear parts along with an internal rod, when the front and rear handles are connected and removed, the internal rod or the female and male locking fittings are attached. Since there is no need to touch the connector, the above connection/disconnection operation can be performed easily and quickly, and the number of parts of the female and male locking fittings can be reduced to reduce weight, and the above operation can be performed accurately and reliably. It is.

[Brief explanation of the drawing]

FIG. 1 is a side view showing an embodiment of the high branch scissors of the present invention;
Figure 2 is an enlarged side sectional view of the main part, Figure 3 is a cutaway side view of the main part when divided, and Figures 4, 5, 6, and 7 are the 2nd and 3rd views.
FIG. 8 is a sectional view taken along lines A to A, B to B, C to C, and D to D in the figures, and a separated perspective view of the male and female locking fittings. 1 is a handle, 1a is a front handle, 1b is a rear handle, 2 is a pair of scissors, 2a is a fixed piece, 2b is a movable piece, 3 is an operating mechanism, 3a is a fixed rod, 3b is an operating rod, 4 is a rod,
5 is a female side locking metal fitting, 6 is a male side locking metal fitting, 7 is a fitting part (connection tube), 8 is a pin, 10 is a holding tube, 1
0b is the notch.

Claims (1)

[Scope of utility model registration request] A rod is inserted movably in the axial direction into a handle formed of a tubular body, and a fixed piece of the scissors and a movable piece that can be opened and closed relative to the fixed piece are connected to each front end of the handle and rod, respectively. At the same time, a fixed rod and an operating rod constituting the operating mechanism are respectively connected to the rear ends of the handle and rod, and the operation of the operating rod, which is energized to open freely by the bullet, is movable via the rod. In a pair of high-branch scissors, the handle and rod are divided into a front and a rear part at the middle part, and one end of the divided front handle and the rear handle are attached to the other end. In addition to providing a fitting part into which the part is inserted,
A guide groove is formed in the fitting part to guide and introduce the pin fixed to the circumferential surface of the other end from the axial direction to the circumferential direction, and a circumferential tip of the guide groove is formed on the outside of the fitting part. A holding cylinder with a notch for intervening in the axial direction of the pin introduced up to constrained in the direction of rotation,
Separable high-branch scissors characterized by a pair of female and male locking metal fittings connected to each other, which are fitted and locked to each other by the fitting action and relative rotation of both handles.