RU224752U1 - TOOL WITH REPLACEABLE ATTACHMENT FOR GARDENING, REPAIR AND CONSTRUCTION WORK AND TOURING AND CLIMBING EQUIPMENT - Google Patents

Abstract

The utility model relates to hand tools, namely the design of a tool with a replaceable attachment, and can be used for gardening, repair and construction work, tourist and mountaineering equipment, etc. The technical result of the utility model is to increase the reliability of fastening the replaceable attachment in the tool handle while simultaneously ensuring ease of installation and dismantling of the replaceable attachment due to the design features of the solution. The technical result is achieved by using a tool with a replaceable nozzle, containing a handle with a longitudinal horizontal slot with three holes into which the connection elements are installed, a replaceable nozzle with a slot and three sections, the dimensions of which correspond to the dimensions of the specified connection elements, the first connection element and the first section the slots of the nozzle, as well as the third connection element and the third section of the slot of the nozzle are made to form two fixed fixation points, and the second connection element and the second section of the slot of the nozzle are made to form a movable fixation point. 4 ill.

Description

The utility model relates to hand tools, namely the design of a tool with a replaceable attachment and can be used for gardening, repair and construction work, tourist and mountaineering equipment, etc.

A tool with a replaceable attachment is known (US application No. 2006123955, published June 15, 2006), containing a handle with a longitudinal horizontal slot that divides the handle into lower and upper parts, while the lower part of the handle contains a protrusion having two side grooves at the remote end . The tool also contains a replaceable attachment in the form of a two-pronged fork, the ends of which are directed towards each other. In this case, the replaceable nozzle is configured to engage its ends with the side grooves of the handle protrusion at its remote end.

The disadvantage of the considered solution is the presence of play in the place where the ends of the nozzle engage with the grooves of the handle protrusion in the horizontal plane, both in the longitudinal direction and in the left-right direction, which leads to displacement or “walking” of the nozzle when using it. That is, this design of the tool does not have the necessary level of reliability for attaching the replaceable attachment to the handle when using the tool.

A tool with a replaceable nozzle is known (US patent No. 6651346, published November 25, 2003), taken as the closest analogue to the claimed solution, containing a handle consisting of first and second parts, and the height of the first part is made smaller than the height of the second part. The first portion of the handle with a smaller height includes first and second protrusions, the second protrusion having a larger size than the first protrusion. The tool also contains an attachment with a longitudinal slot having a flaring, wherein the width of the slot corresponds to the size of the first protrusion, and the size of the widening of the slot corresponds to the size of the second protrusion. Moreover, the replaceable nozzle is made with the possibility of placing its first protrusion in the slot of the replaceable nozzle with subsequent securing of the first protrusion by means of a fixation element, as well as its second protrusion - in the expansion of the slot of the replaceable nozzle.

By fixing the first and second protrusions of the handle in the slot of the replaceable attachment, two support zones are formed for more reliable fastening of the replaceable attachment to the handle of the tool, which reduces the manifestation of play in the horizontal plane when using it. However, the first and second protrusions are located on the first part of the handle at a lower height than the second part, which is precisely held in the user's hand. That is, the first part of the handle in this case is made open and not fixed in anything in its upper zone, which leads to play in the vertical plane and “walking” of the replaceable attachment when using the tool. Also, if the dimensions of the expansion of the slot and the second protrusion do not match, play may also occur in the horizontal plane. Such unreliable fixation of the replaceable nozzle in the handle leads to runout of the tool parts, the occurrence of internal stresses, weakening of the attachment points of the nozzle and the handle and a decrease in the service life of the tool. As a result, the considered design does not have the necessary reliability for securing the replaceable attachment in the tool handle.

In addition, removing the replaceable tool attachment is a rather labor-intensive procedure in this case. To do this, it is necessary to remove the fixing element from the first protrusion by unscrewing it, disconnecting it, etc. In this case, while the nozzle is being changed, the disconnected fixation element may get lost.

The technical problem of the present utility model is the creation of a tool with a replaceable attachment that eliminates the occurrence of backlash when used in both the horizontal and vertical planes.

The technical result of the utility model is to increase the reliability of fastening the replaceable attachment in the tool handle while simultaneously ensuring ease of installation and dismantling of the replaceable attachment due to the design features of the solution.

The technical result is achieved by using a tool with a replaceable attachment for gardening, repair and construction work and tourist and mountaineering equipment containing:

a handle with a longitudinal horizontal slot dividing the handle into upper and lower parts;

in this case, the upper and lower parts of the handle each contain three holes;

in each of the three holes in the upper part of the handle, the upper parts of the connection elements are installed, and in each of the three holes in the lower part of the handle, the corresponding lower parts of the corresponding connection elements are installed;

wherein the upper part of the second connection element located in the second central hole in the upper part of the handle contains a spring, and the lower part of the second connection element located in the second central hole in the lower part of the handle is made with expansion in the direction from the handle slot;

wherein the second central hole in the upper part of the handle in the area where the horizontal longitudinal slot of the handle is located has a groove configured to partially accommodate therein the narrow end of the lower part of the second connection element located in the second central hole in the lower part of the handle;

the tool also contains a replaceable nozzle, designed to be installed in a horizontal longitudinal slot in the handle;

in this case, the thickness of the replaceable nozzle corresponds to the width of the horizontal longitudinal slot in the handle;

wherein the replaceable nozzle has a slot with three sections with intermediate parts between them;

wherein the width of the intermediate parts between these sections is less than the width of each of these sections of the slot of the replaceable nozzle;

the width of the first section of the slot of the nozzle corresponds to the size of that part of the first connection element, which is located in the horizontal longitudinal slot in the handle, the width of the second section of the slot of the nozzle corresponds to the size of the specified groove, made with the possibility of partially placing in it the narrow end of the lower part of the second connection element, and the width of the third the slot section is made with increasing width so that the expanded part of the third section corresponds to the size of that part of the third connection element, which is located in the horizontal longitudinal slot in the handle.

The handle has a horizontal longitudinal slot in which a replaceable nozzle is placed, the presence of three holes in the upper and lower parts of the handle with connection elements located in them, as well as the presence of three sections of the slot of a replaceable nozzle, the width of which corresponds to the dimensions of the parts of the connection elements located in the horizontal longitudinal slots, allows, when using the tool, to securely fix the replaceable attachment directly in the body of the handle at three support points.

The location of the replaceable nozzle in the horizontal longitudinal slot of the handle, that is, between the upper and lower parts of the handle, as well as the thickness of the replaceable nozzle corresponding to the width of the horizontal longitudinal slot in the handle allows for a tight fit of the nozzle into the handle slot without gaps, which eliminates the occurrence of play in the vertical plane, that is, when the instrument is exposed to pressure from above or below.

Making the width of the first section of the nozzle slot corresponding to the size of that part of the first connection element that is located in the horizontal longitudinal slot in the handle, as well as the presence of an intermediate part between the first and second section of the slot with a width less than the width of these sections, allows you to form a first support point, when the part of the first connection element, located in the handle slot, is tightly enclosed along the entire perimeter by the body of the replaceable nozzle without gaps, which eliminates the occurrence of play in the horizontal plane in the right-to-left direction, that is, when the tool is impacted from the sides.

Making the width of the third section of the slot with an increase in width so that the width of its expanded part corresponds to the size of that part of the third connection element, which is located in the horizontal longitudinal slot in the handle, makes it possible to obtain a third section of the nozzle slot in the form of a wedge, the narrow part of which is located in front of the third connection element , and its wider part is in contact with the sides of the third connection element. Thus, a third support point is formed with the implementation of a wedging effect, which eliminates the occurrence of backlash in the horizontal plane in the longitudinal direction, that is, when the tool is subjected to a longitudinal impact “head-on”. With this effect, the replaceable nozzle only goes deeper into the body of the handle, enveloping the third element of the connection even more tightly.

In this case, the first and third connection elements are made motionless with the formation of motionless support points.

The purpose of the second connection element is either the final fixation of the replaceable nozzle in the handle after its installation, or to ensure the possibility of its quick dismantling. For this, in addition to those discussed above, the following design features of the tool were used: making the upper part of the second connection element, located in the second central hole in the upper part of the handle, with a spring, making the lower part of the second connection element, located in the second central hole in the lower part of the handle, with expansion in the direction from the horizontal longitudinal slot of the handle, as well as the presence of a groove in the area of placement of the horizontal longitudinal slot of the handle, made with the possibility of partially placing in it the narrow end of the lower part of the second connection element. All this allows us to form a second fulcrum in the form of a single unit, movable in a vertical plane. Moreover, the vertical movement of the second connection element within the second central hole of the handle and the second section of the slot of the replaceable nozzle is ensured, among other things, by the fact that the width of the second section of the slot of the nozzle corresponds to the size of the specified groove in the handle.

At the moment when the side walls of the specified groove come into contact with the side walls of the narrow end of the lower part of the second connection element located in it, as well as with the side walls of the second section of the slot in the replaceable nozzle, all of these elements engage with each other, which makes it possible to form a second fulcrum and finally fix the replaceable attachment in the body of the handle.

At the moment when the size of the narrow end of the lower part of the second connection element is smaller than the size of the specified groove, that is, their side walls are not in contact with each other and with the walls of the slot section in the replaceable nozzle, the replaceable nozzle can be removed from the handle.

Thus, the replaceable nozzle can be quickly installed and fixed in the body of the handle at three points, allowing to avoid play in all planes and the direction of external force, and can be easily dismantled if necessary.

In fig. Figure 1 shows a general view of the assembled structure of the tool with a replaceable nozzle.

In fig. Figure 2 shows a cross-sectional side view of a tool with a replaceable attachment.

In fig. Figure 3 shows a general view of a replaceable nozzle with a slot.

In fig. Figure 4 shows the placement of connection elements in the holes of the handle and in the slot areas of the replaceable nozzle.

A tool with a replaceable attachment contains a handle 1 and a replaceable attachment 2. The replaceable attachment 2 is located in a horizontal longitudinal slot 3 in the handle 1, and the thickness of the replaceable attachment 2 corresponds to the width of the slot 3 of the handle 1 (Fig. 1).

According to FIG. 2, in the area where the horizontal slot 3 is located, the handle is divided into upper 4 and lower 5 parts. In this case, in the upper part 4 of the handle 1 there is a first hole 6, a second central hole 7 and a third hole 8. In the lower part 5 of the handle 1 there are also a first hole 9, a second central hole 10, and a third hole 11.

In the first hole 6 of the upper part 4 of the handle 1 there is an upper part 12 of the first connection element 13, and in the first hole 9 of the lower part 5 of the handle 1 there is a corresponding lower part 14 of the first connection element 13. The upper part 12 and the lower part 14 of the first connection element can be connected to each other by means of threads or represented by a blind rivet.

In the third hole 8 of the upper part 4 of the handle 1 there is an upper part 15 of the third connection element 16, and in the third hole 11 of the lower part 5 of the handle 1 there is a corresponding lower part 17 of the third connection element 16. The upper part 15 and the lower part 17 of the third connection element 16 can be connected to each other by means of threads.

In the second central hole 7 of the upper part 4 of the handle 1 there is an upper part 18 of the second connection element 19 with the spring 20 surrounding it. In the second central hole 10 of the lower part 5 of the handle 1 there is a corresponding lower part 21 of the second connection element 19. Moreover, the specified corresponding lower part 21 is made with expansion downward, that is, in the direction from the slot 3 of the handle 1 deep into the body of the handle 1.

The upper part 18 and the lower part 21 of the second connection element 19 can be connected to each other via threads.

In a particular case, the specified reciprocal lower part 21 of the second element of the connection 19 is made in the shape of a truncated cone. It can also be made in the form of a pyramid or any other shape that has a base that expands downwards.

In the upper part 4 of the handle 1 in the area where the horizontal longitudinal slot 3 is located, the second central hole 7 has a groove 22, the size of which is made such that it can partially accommodate the narrow end of the corresponding lower part 21 of the second connection element 19.

The replaceable nozzle 2 contains a slot 23 having a first section 24, a second section 25, a third section 26. Between the first section 24 and the second section 25 there is an intermediate part 27, the width of which is less than the width of the specified sections 24 and 25. Between the second section 25 and the third section 26 there is an intermediate part 28, the width of which is less than the width of the specified sections 25 and 26 (Fig. 3).

The width of the first section 24 of the slot 23 of the nozzle 2 corresponds to the size of that part of the first connection element 13, which is located in the horizontal longitudinal slot 3 in the handle 1, which ensures close contact of the walls of the first connection element 13 with the boundaries of the first section 24 of the slot 23 of the nozzle 2.

The width of the second section 25 of the slot 26 corresponds to the size of the groove 22, configured to partially accommodate the narrow end of the corresponding lower flaring part 21 of the second connection element 19.

The width of the third section 26 of the slot 23 is made with increasing width so that the width of its narrow part corresponds to the width of the intermediate part 28 of the slot 23 between sections 25 and 26, and the widened part corresponds to the size of that part of the third connection element 16, which is located in the horizontal longitudinal slot 3 in handle 1.

The material for the handle 1 can be wood, composite or polymer materials.

Various grades of steel or similar durable metal can be used as the material for the replacement nozzle 2.

Thus, the inventive tool is a design in which a replaceable nozzle 2 is quickly and securely fixed in the body of the handle 1 by means of three support points formed in the area where the corresponding connection elements 13, 16, 19 are located (Fig. 4).

In this case, the first point of support eliminates the occurrence of play during lateral impacts on the tool, the third point of support eliminates the occurrence of play during longitudinal impacts - due to the wedging effect, when, with the longitudinal application of force, the nozzle 2 will only enter deeper into the body of the handle 1, providing even greater fixation. And the second fulcrum serves either for the final fixation of the nozzle 2 in the body of the handle 1, or allows the user to remove the nozzle 2 for the purpose, for example, of washing the tool or replacing the nozzle 2 with another.

The use of a tool with a replaceable nozzle is implemented as follows.

A horizontal longitudinal slot 3 is made in the body of the handle 1 to obtain the upper 4 and lower 5 parts of the handle 1 in the area where this slot is located (Fig. 1).

In the upper part 4 of the handle 1 there is a first hole 6, a second central hole 7, a third hole 8.

In the lower part 5 of the handle 1 there is a first hole 9, a second central hole 10, a third hole 11.

In the first hole 6 of the upper part 4 of the handle 1, the upper part 12 of the first connection element 13 is installed, and in the first hole 9 of the lower part 5 of the handle 1, the corresponding lower part 14 of the first connection element 13 is installed.

These parts of the first connection element 13 are fixed to each other, for example, by means of a thread or a similar connection.

In the third hole 8 of the upper part 4 of the handle 1, the upper part 15 of the third connection element 16 is installed, and in the third hole 11 of the lower part 5 of the handle 1, the corresponding lower part 17 of the third connection element 16 is installed.

These parts of the third connection element 16 are fixed to each other, for example, by means of a thread or a similar connection.

The first 13 and third 16 connection elements are installed motionless in the body of the handle 1.

To install the second connection element 19 in the area where the horizontal longitudinal slot 3 of the handle 1 is located, a groove 22 is made.

The depth and shape of the second central hole 7 is made so that the upper part 18 of the second connection element 19 with the spring 20 is placed in this hole. The depth and shape of the second central hole 10 in the lower area of the lower part 5 of the handle 1 is made so that in this hole it is possible It was possible to mark the corresponding lower part 21 of the second element of the connection 19, made with a downward expansion of the base, for example, in the form of a truncated pyramid (Fig. 2).

These parts of the second connection element 19 are fixed to each other, for example, by means of a thread or a similar connection.

Next, a slot 23 is made on the replaceable nozzle 2, which in the preferred embodiment is located in the center of the nozzle 2.

The slot 23 is made with three sections 24, 25 and 26, as well as intermediate parts 27 and 28 between these sections. In this case, the width of the intermediate parts 27 and 28 is made smaller than the width of any of the three sections, which is necessary for the precise formation and identification of these sections and their reliable engagement with the three connection elements 13, 16, 19 installed in the handle 1 (Fig. 3) .

Next, the replaceable nozzle 2 is inserted into the horizontal longitudinal slot 3 in the handle 1.

In this case, the slot 23 of the replaceable nozzle 2 is moved along the line of location of the connection elements 13, 16, 19 in the handle 1, which in the preferred embodiment of the solution runs in the middle of the handle 1.

The dimensions of the sections 24, 25, 26 of the slot 23 of the nozzle 2 are made corresponding to the dimensions of the connection elements 13, 16, 19 installed in the handle 1, for the smooth passage of the nozzle 2 inside the horizontal longitudinal slot 3.

The nozzle 2 is moved so that the third section 26 of the slot 23 of the nozzle 2 engages with the sides of that part of the third element of the connection 16, which is located in the horizontal longitudinal slot 3 in the handle 1. In this case, the second section 25 of the slot 23 of the nozzle 2 is located in the placement area parts of the second connection element 19 in the horizontal longitudinal slot 3 in the handle 1, and the first section 24 of the slot 23 of the nozzle 2 is located in the area where the part of the first element 13 is placed in the horizontal longitudinal slot 3 in the handle 1.

When installing the nozzle 2, the walls of the third 26 and first 24 sections of the replaceable nozzle 2 tightly cover the third 16 and first 13 connection elements to obtain two points of support.

In this case, in the area of the second connection element 19, when installing the nozzle 2, there is no fixation.

To form the third support point, press on the lower part 21 of the second connection element 19, while moving it along the second central hole 10 in the lower part 5 of the handle 1. In this case, the opposite narrow end of the lower part 21 of the second connection element 19 is placed in the groove 22 located in zone of the horizontal longitudinal slot 3. At this moment, the end of the lower part 21 of the second element of the connection 19, made with a gradual expansion, touches the side walls of the second section 25 of the slot 23 of the nozzle, ensuring final fixation of the nozzle 2 in the handle 1 as soon as their dimensions match.

To make it possible to remove the nozzle 2, press on the upper part 18 of the second connection element 19, thus acting on the spring 20. In this case, the upper part 18 of the second connection element 19 is moved inside the second central hole 7. When the spring 20 is compressed, the fixed end of the lower one is pushed out parts 21 of the second connection element 19 from the groove 22, which removes it from engagement with the side walls of the second section 25 of the slot 23 of the nozzle 2.

In this case, nozzle 2 can be easily removed from handle 1 by pulling it in the longitudinal direction.

Thus, the tool contains a first connection element and a first section of the nozzle slot, as well as a third connection element and a third section of the nozzle slot, which are made to form two fixed fixation points, and a second connection element and a second section of the nozzle slot, which are made to form a movable point fixation.

The inventive solution makes it possible to quickly carry out both installation and dismantling of a replaceable nozzle and at the same time ensure its reliable fixation inside the body of the tool handle without play in the horizontal and vertical plane, which distinguishes this solution from analogues on the market.

Claims (1)

A tool with a replaceable attachment for gardening, repair and construction work and tourist and mountaineering equipment, characterized in that it contains a handle with a longitudinal horizontal slot dividing the handle into upper and lower parts, while the upper and lower parts of the handle contain three holes, in each of the three holes in the upper part of the handle, the upper parts of the connection elements are installed, and in each of the three holes in the lower part of the handle, the corresponding lower parts of the corresponding connection elements are installed, while the upper part of the second connection element located in the second central hole in the upper part of the handle contains spring, and the lower part of the second connection element located in the second central hole in the lower part of the handle is made with an expansion in the direction from the handle slot, and the second central hole in the upper part of the handle in the area where the horizontal longitudinal slot of the handle is located has a groove made with the possibility of partial placing in it the narrow end of the lower part of the second connection element located in the second central hole in the lower part of the handle, the tool also contains a replaceable nozzle configured to be installed in a horizontal longitudinal slot in the handle, and the thickness of the replaceable nozzle corresponds to the width of the horizontal longitudinal slot in the handle , wherein the replaceable nozzle has a slot with three sections with intermediate parts between them, and the width of the intermediate parts between these sections is less than the width of each of these sections of the slot of the replaceable nozzle, the width of the first section of the slot of the nozzle corresponds to the size of that part of the first connection element that is located in the horizontal longitudinal slot in the handle, the width of the second section of the slot of the nozzle corresponds to the size of the specified groove, made with the possibility of partially placing in it the narrow end of the lower part of the second element of the connection, and the width of the third section of the slot is made with an increase in width so that the expanded part of the third section corresponds to the size of that part the third connection element, which is located in a horizontal longitudinal slot in the handle.

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