JPH09232063A - Stopper for terminal reel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily mount and demount it, preclude the possibility of losing a part, and stably supply a terminal in a stopper for a terminal reel to prevent the terminal reel from falling off from a support shaft while imparting prescribed rotational resistance to the terminal reel round which a chained terminal is wound. SOLUTION: A movable side member 12 having a pressing part 15 to press an end surface 8a of a terminal reel 8 is fitted to a fixing side member 11 fixed to a support shaft 7 so as not to be extracted, and a compression coil spring 13 in a prescribed compressed condition is held by both members 11 and 12. A fixing screw 10 to fix the fixing side member 11 to the support shaft 7 is installed in the fixing side member 11. The respective members 11 and 12, the compression coil spring 13 and the fixing screw 10 are formed as an integral unit 9, and the unit 9 can be collectively mounted on and demounted from the support shaft 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is mounted on a support shaft rotatably supporting a terminal reel having a chain terminal wound thereon, and supports the terminal reel while allowing the terminal reel to rotate around the support shaft. The present invention relates to a terminal reel stopper that prevents the terminal reel from falling off.

[0002]

2. Description of the Related Art Generally, in a terminal crimping device, a terminal of a wire is crimped and attached to a strip of an electric wire while a bridge of a chain terminal is separated. Usually, the chain terminal is wound around a terminal reel in a spiral shape, and is sequentially fed out from the terminal reel.

The above terminal reel is held by a horizontal support shaft so as to be rotatable and capable of being pulled out in the axial direction. When the chain terminal of the terminal reel is consumed, a new terminal reel full of chain terminals is provided. Exchanged for. The terminal reel is prevented from falling off from the support shaft 93 by a terminal reel stopper mechanism (see Japanese Utility Model Laid-Open No. 7-27087) as shown in FIG. In this stopper mechanism, the terminal reel 90 is pressed by the end surface 91 of the terminal reel 90.
A movable side member that rotates together with the fixed shaft, a fixed nut 94 screwed and fixed to the support shaft 93, and a compression coil spring 95 that is interposed between the two members 92 and 94 and presses the movable side member 92 against the end surface 91 of the terminal reel 90. have.

When mounting the terminal reel 90, first, the movable member 92 is fitted into the support shaft 93, and then the compression coil spring 95 is fitted therein. Furthermore, the fixing nut 94
The compression coil spring 95 in a free state.
Is bent by a predetermined stroke amount, the fixing nut 94
Is fixed to the support shaft 93. When removing the terminal reel 90, the fixed nut 94, the compression coil spring 95, and the movable member 92 are removed in this order in the reverse order.

[0005]

In the above stopper mechanism, each part 9 is replaced when the terminal reel 90 is replaced.
Since 2 to 94 are separately attached and detached, it takes time and effort.
Moreover, when the terminal reel 90 is replaced, the components 92 to 94 that form the stopper mechanism may be lost.

Further, since the compression coil spring 95 is compressed and bent from the free state, a large stroke amount must be bent, and therefore, the person who replaces the terminal reel 90 sets the compression coil spring 95. There is a large individual difference in the length d. Further, even for the same person, the set length d of the compression coil spring 95 varies each time the terminal reel 90 is replaced. Therefore, the terminal reel 90 by the movable member 92
Since the pressing force on the terminal reel 90 is not constant, the rotation resistance of the terminal reel 90 is not constant. As a result, the tension of the chain terminals is not constant, and stable terminal supply cannot be performed in some cases.

Therefore, an object of the present invention is to provide a terminal reel stopper which can be easily attached and detached without fear of losing parts and which enables stable terminal supply.

[0008]

In order to achieve the above object, the invention according to claim 1 is such that the terminal reel drops off from the support shaft in a state in which a predetermined rotation resistance is applied to the terminal reel wound with a chain terminal. In the terminal reel stopper for preventing the above-mentioned operation, a fixed side member fitted and fixed to the support shaft and a pressing portion for pressing the end surface of the terminal reel are provided, and the fixed side member cannot be removed. A movable side member that is loosely fitted in, a compression coil spring that is held in a predetermined compressed state by both members and that urges the movable side member toward the terminal reel, and a fixing means that fixes the fixed side member to the support shaft. It is characterized by having.

In the invention including the above-mentioned specific matters, since the movable side member, the fixed side member, the compression coil spring, and the fixing means are configured as an integral unit which can be mounted on the support shaft at once, the support shaft is attached to the support shaft. On the other hand, it can be set with a touch, which saves time. Further, unlike the conventional case, the parts are not lost. Further, since the compression coil spring is previously compressed in the state of the unit, only a small amount of bending of the compression coil spring is required when setting the stopper on the support shaft. Therefore, since the flexure of the compression coil spring does not vary so much at each set time, it is possible to suppress the variation in the rotational resistance of the terminal reel at each set time.

According to a second aspect of the present invention, in the terminal reel stopper according to the first aspect, the bending amount of the compression coil spring is provided in one of the fixed side member and the movable side member. Is further provided. In the invention including this specific matter, when the compression coil spring is bent when fixing the fixed side member to the support shaft, the bending amount can be defined by the defining member. Therefore, the bending amount is uniquely defined by this bending definition. Can be set to.

According to a third aspect of the present invention, in the terminal reel stopper according to the first or second aspect, the fixing means is provided on one of the fixed side member and the support shaft, and has a plurality of different widths. Of the plurality of locking grooves formed corresponding to the terminal reel of No. 1 and the other of the fixed side member and the support shaft, the fixed side member can be selectively locked to the plurality of locking grooves. And a locking member provided.

In the invention including this specific matter, the locking member is locked in the specific locking groove selected from the plurality of locking grooves, so as to correspond to a plurality of types of terminal reels having different widths. It is possible to set the fixed position of the fixed member. According to a fourth aspect of the present invention, in the terminal reel stopper according to the third aspect, the locking groove and the locking member are displaced only in the inserting direction when the fixed side member is inserted through the support shaft. It constitutes a tolerable retrograde mechanism.

In the invention including this specific matter, the fixed-side member can be attached only by pushing the unitized terminal reel stopper along the support shaft.

[0014]

Embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 2 shows a terminal crimping device including a terminal reel stopper according to an embodiment of the present invention.
Referring to the figure, a main body 3 of the terminal crimping device 2 is installed on the top surface 1a of the flat base 1, and an anvil 4 is provided below the main body 3. An elevating body 5 having a crimping function is attached to the body 3 immediately above 4 so as to crimp the terminal t to the stripped end of the electric wire w while separating the bridge of the chain terminal n.

A base portion 6a of a rod-shaped stand 6 is planted in the upper portion 3a of the main body 3, and a boss portion 7a of a support shaft 7 is attached to the upper portion 6b of the stand 6 with respect to the stand 6. And is pivotally mounted so as to be orthogonal to each other. Further, a terminal reel 8 loaded with a chain terminal n is detachably mounted on the support shaft 7, and a unit 9 forming a stopper for the terminal reel is mounted on the support shaft 7 outside the terminal reel 8. It is fitted.

Referring to FIG. 3 which is a perspective view of the unit 9, FIG. 4 which is a cross-sectional view of the unit 9 and FIG. 1 which is a cross-sectional view of the unit 9 in a state of being set on the support shaft 7, the unit 9 is shown.
Is a fixed-side tube body 11 fixed to the support shaft 7 by a fixing screw 10, a movable-side tube body 12 pressed against the end surface 8a of the terminal reel 8, and a movable-side tube body held by both tube bodies 11 and 12. A compression coil spring 13 for pressing and biasing 12 to the terminal reel 8 side is configured as an integrated unit that can be attached to and detached from the support shaft 7 collectively.

The fixed cylinder 11 has a flange 1 at one end.
4 has a movable side tubular body 1 from the flange 14 side.
It is fitted inside 2. The movable tubular body 12 is integrally formed with a pressing portion 15 that presses and contacts the end surface 8a of the terminal reel 8. An annular plate 16 that engages with the flange 14 of the fixed-side tubular body 11 is screwed to the end surface of the movable-side tubular body 12 on the opposite side to the pressing portion 15. By engaging the annular plate 16 and the flange 14,
Both cylinders 11 and 12 are prevented from coming out from each other.

The compression coil spring 13 is accommodated in the movable-side tubular body 12 and is interposed between the pressing portion 15 of the movable-side tubular body 12 and the flange 14 of the fixed-side tubular body 11. There is. As shown in FIG. 4, the annular plate 16 and the flange 14
Are engaged with each other to define the relative axial positions of the two cylindrical bodies 11 and 12, and the compression coil spring 13 is bent by a predetermined amount. That is, in the unit 9 when not set, the compression coil spring 13 has already been given a predetermined bending amount.

The fixing screw 10 is a manually rotatable screw screwed into a screw hole that radially penetrates the peripheral surface of the fixed cylinder 11. As shown in FIG. 1, the tip of the fixing screw 10 is pressed against the peripheral surface of the support shaft 7, whereby the fixed-side cylinder 11 is fixed to the support shaft. In the case of the above configuration, after the unit 9 is integrally fitted into the support shaft 7, the compression coil spring 13 is bent by a predetermined amount e (a bending amount from the time of non-setting) as shown in FIG. In this state, the fixing screw 10 is screwed in to fix the fixed-side tube body 11 to complete the setting of the unit 9. Further, the unit 9 can be removed by loosening the fixing screw 10 and pulling the unit 9 together from the support shaft 7.

As described above, in this embodiment, the unit 9
Since it is possible to integrally attach and detach the terminal reel 8, it is possible to replace the terminal reel 8 in a short time without the labor and time required for setting. In addition, there is no risk of losing parts as in the past. Further, since the compression coil spring 13 incorporated in the unit 9 is bent in advance, when setting the unit 9 on the support shaft 7, it is sufficient to bend the compression coil spring 13 by a small amount. Therefore, the compression coil 1 for each set time
As a result, it is possible to reduce the variation in the amount of flexure of No. 3 and to secure a substantially constant rotation resistance for the terminal reel 8. As a result, stable terminal supply can be achieved.

Next, another embodiment shown in FIG. 5 and subsequent figures will be described. FIG. 5 is an external perspective view of a terminal reel stopper according to another embodiment of the present invention, and FIG.
FIG. 7 is an exploded perspective view of the terminal reel stopper of FIG.
It is sectional drawing of the stopper for terminal reels of FIG. With reference to these figures, a terminal reel stopper according to another embodiment of the present invention includes a cylindrical main body disk 21, a cover disk 22 that constitutes a fixed side member together with the main body disk 21, and a movable side member. And the pressing disk 23 of FIG.

Each of the disks 21 to 23 is an annular member which is formed to have the same diameter, and a central portion of which has a shaft hole 31 into which a support shaft 7 described later is inserted. The main body disk 21 and the cover disk 22 are integrated by screws 24 arranged at 60 ° intervals on the same circumference. On the other hand, the body disk 21 has screws 24 and 30.
An insertion hole 21a for inserting the bolt 25 with a phase shift is formed, and the cover disk 22 has a stepped insertion hole 2 on which the head 25a of the bolt 25 can be seated.
2a is formed. Further, the pressing disk 23 is provided with screw holes 23a corresponding to the holes 21a and 22a of the disks 21 and 22, respectively. And bolt 25
Is inserted through the cover disk 22, screwed into the screw hole 23a of the pressing disk 23 and fixed by the nut 25b, so that the pressing disk 23 can be displaced relative to the fixed disks 21 and 22. It has become.
Here, each bolt 25 holds a compression coil spring 26 interposed between the main body disk 21 and the pressing disk 23. The compression coil spring 26 urges the movable-side pressing disk 23 against the fixed-side disks 21 and 22 in the direction in which they separate from each other. In the illustrated example, the adjusting screw 21b is provided on the facing surface of the body disk 21 facing the pressing disk 23.
It projects toward 3. And this adjusting screw 21
b is a regulating member that regulates the amount of bending of the compression coil spring 26 when the compression coil spring 26 is bent when the fixed disks 21 and 22 are fixed to the support shaft 7.

Cover disk 2 of the main disk 21
2 has a concave portion 2 formed in a predetermined shape on the end surface facing the concave portion 2.
7 is partitioned, and a locking member 28 is accommodated in the recess 27 and is interposed between the locking member 28 and the cover disk 22. Referring to FIG. 6, the recess 27 is formed by the main body disc 2
1. A rectangular portion 27a partitioned around the first axial hole 31, a spring accommodating portion 27b extending from one side of the rectangular portion 27a outward in the radial direction of the main body disk 21, and extending in the same diameter direction DA as the spring accommodating portion 27b. Communication part 27c communicating with the outer peripheral surface
And are divided.

The locking member 28 has an insertion portion 28a formed in a rectangular frame shape, a spring receiving protrusion 28b protruding from one side of the inserting portion 28a, and an operation protrusion protruding from one side facing the spring receiving protrusion 28b. 28c and spring receiving protrusion 28b
Locking claw 28d protruding from the inner surface of one side where the
It is a metal member that is integrated with. The locking claw 28d
Is for locking in a taper groove 7b of the support shaft 7 which will be described later, and the opening width W in the diametrical direction DA defined by the locking claw 28d is a dimension sufficient for inserting the support shaft 7. Is set to. Then, the insertion portion 28a is accommodated in the rectangular portion 27a of the recess 27, and the spring receiving protrusion 28b is accommodated in the spring accommodation portion 2.
7b and the operating protrusion 28c along the communication portion 27c, the locking member 28 is engaged with the retracted position in which the locking claw 28d retracts from the shaft hole 31 along the same diameter direction DA. The stop claw 28d is received in the shaft hole 31 and is displaceably housed in a locking position where it is locked in a taper groove 7b of the support shaft 7 which will be described later.

Further, when the locking member 28 is mounted in the recess 27, the compression coil spring 29 is housed together with the locking member 28 in the spring housing portion 27b of the recess 27. The compression coil spring 29 is contracted with the recess 27 by inserting the spring receiving projection 28b of the locking member 28 at one end thereof, and the locking member 28 is constantly biased to the locking position. doing. In this state, the operating projection 28c of the locking member 28 projects outward in the radial direction of the main body disk 21. Then, the locking member 28 can be displaced to the retracted position by pushing the operation projection 28c inward in the radial direction against the biasing force of the compression coil spring 28b.

FIG. 8 is a sectional view of the terminal reel stopper of FIG. 5 when it is used. As shown in the figure, in the configuration of the illustrated example, a plurality of taper grooves 7b formed on the entire circumference of the support shaft 7 are formed. Each taper groove 7b is
The upstream side is narrowed in the direction I in which the unit 20 is inserted into the support shaft 7, which allows the fixed side member to be displaced only in the direction of pressing the terminal reel together with the locking claw 28d of the locking member 28. It constitutes a retrograde prevention mechanism.

In the specific examples shown in FIG. 5 and below, when the compression coil spring 26 is bent when fixing the unit 20 to the support shaft 7, the amount of bending of the compression coil spring 26 can be regulated by the adjusting screw 21b. It is possible to uniquely set the bending amount. Therefore, as a result of this flexing regulation, the pressing force of the compression coil spring 26 can be transmitted to the terminal reel 8 without excess or deficiency, and as a result, the trouble that the rotation degree of the terminal reel 8 changes every time the terminal reel 8 is set is facilitated. There is an advantage that it can be prevented.

In addition, by locking the locking claw 28d of the locking member 28 to a specific tapered groove 7b selected from the plurality of tapered grooves (locking grooves) 7b, a plurality of different widths can be obtained. As a result, it becomes possible to set the fixing positions of the main body disk 21 and the cover disk 22 in correspondence with the terminal reel 8, and as a result, there is an advantage that the versatility of the terminal reel stopper is improved.

In particular, since the locking claw 28d and the peripheral groove 7b described above constitute a retrograde prevention mechanism which allows displacement only in the insertion direction I, the amount of bending of the compression coil spring 26 is regulated by the adjusting screw 21b. By inserting the main body disk 21 and the cover disk 22 into the support shaft 7 until
The main body disk 21 and the cover disk 22 can be fixed at a place where the regular amount of deflection is uniformly defined with one touch. As a result, there is an advantage that the setting becomes easier.

The present invention is not limited to the above embodiment. For example, in the specific example of FIGS.
Either of the cylindrical bodies 11 and 12 may be arranged outside. The compression coil spring 13 may be arranged on the outer peripheral side of the tubular body. Further, the fixed side cylinder 1
1 is composed of a nut that can be screwed onto the support shaft 7, and a fixing screw 1
You may abolish 0.

Further, in the embodiment shown in FIG. 5 and thereafter, when the adjusting screw 21b is adopted, the compression coil spring 26
Although it is possible to easily change the prescribed amount of bending of the boss, when such a need is not provided, a boss cylinder is projected on either the main body disk 21 or the pressing disk 23 instead of the adjusting screw 21b. You may. In addition, various changes can be made within the scope of the present invention.

[0032]

According to the first aspect of the invention, since the whole unit is constructed as an integral unit that can be attached to and detached from the support shaft, it can be set on the support shaft by a touch, and the time is shortened. Further, unlike the conventional case, the parts are not lost. Further, since the compression coil spring can be flexed by a certain amount in advance, the flexion amount of the compression coil spring does not change significantly each time the stopper is set. Therefore, as a result of being able to make the pressing force to the terminal reel substantially constant, the tension applied to the chain terminals can be kept constant and stable terminal supply becomes possible.

Further, according to the second aspect of the invention, since the amount of bending can be uniquely set by the bending regulation by the regulating member, the pressing force of the compression coil spring is transmitted to the terminal reel without excess or deficiency. As a result, there is an advantage that it is possible to easily prevent a problem that the degree of rotation of the terminal reel changes every time the terminal reel is set.

Further, in the invention according to claim 3, since it is possible to set the fixed position of the fixed side member corresponding to a plurality of types of terminal reels having different widths, there is an advantage that versatility is improved. . In addition, in the invention according to claim 4,
Since the terminal reel stopper can be attached to the support shaft only by the inserting operation, there is an advantage that the operability is further improved.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a state in which a terminal reel stopper according to an embodiment of the present invention is set on a spindle.

FIG. 2 is a schematic front view of a terminal crimping device to which a terminal reel stopper is attached.

FIG. 3 is a perspective view of a terminal reel stopper.

FIG. 4 is a cross-sectional view of the terminal reel stopper when not set.

FIG. 5 is an external perspective view of a terminal reel stopper according to another embodiment of the present invention.

6 is an exploded perspective view of the terminal reel stopper of FIG.

FIG. 7 is a cross-sectional view of the terminal reel stopper of FIG.

8 is a sectional view of the terminal reel stopper of FIG. 5 when in use.

FIG. 9 is a cross-sectional view showing a state in which a conventional terminal reel stopper is set on a support shaft.

[Explanation of symbols]

 n Chain terminal 7 Support shaft 7b Tapered groove (fixing means) 8 Terminal reel 8a End surface 9 Unit 10 Fixing screw (fixing means) 11 Fixed side cylinder (fixed side member) 12 Movable side cylinder (fixed side member) 13 Compression coil Spring 14 Flange 15 Pressing portion 16 Annular plate 21 Main body disc (fixed side member) 22 Cover disc (fixed side member) 23 Pressing disc (pressing portion) 25 Bolt (movable side member) 26 Compression coil spring 28 Locking member (fixing means) )

Claims (4)

[Claims] 1. A terminal reel stopper, which prevents the terminal reel from falling off a support shaft in a state where a predetermined rotation resistance is applied to the terminal reel wound with a chain terminal, is fitted and fixed to the support shaft. A fixed side member, a pressing part for pressing the end face of the terminal reel, and a movable side member that is loosely fitted into the fixed side member, and is held in a predetermined compressed state by both members. A stopper for terminal reels, comprising: a compression coil spring for urging the movable side member toward the terminal reel; and a fixing means for fixing the fixed side member to the support shaft. 2. The terminal reel stopper according to claim 1, further comprising a regulating member provided on either one of the fixed-side member and the movable-side member for regulating a bending amount of the compression coil spring. It is a thing. 3. The terminal reel stopper according to claim 1 or 2, wherein the fixing means is provided on one of the fixed side member and the support shaft and is formed corresponding to a plurality of types of terminal reels having different widths. A plurality of locking grooves that are provided, and a locking member that is provided on the other of the fixed side member and the support shaft and that is provided on the fixed side member so that it can be selectively locked to the plurality of locking grooves. It is one that includes. 4. The terminal reel stopper according to claim 3, wherein the locking groove and the locking member permit a displacement only in the inserting direction when the fixed side member is inserted into the support shaft. Are configured.