ADJUSTABLE PLANER

Description

[0001] The field of invention is that of the design and manufacture of tools used by stone cutters.

[0002] More specifically, the invention relates to the design of a plane, otherwise known in the stonemasonry trade as a "railway plane".

[0003] Planers are planes used to surface soft or even firm stones by scraping.

[0004] Traditionally, planes consist of a wooden body on which steel blades with or without teeth are set. The wooden body has a handle allowing the plane to be manipulated by the stonemason.

[0005] These planes can be flat on a straight body when they plane faces, or shaped when they surface moldings and / or arches.

[0006] Depending on the thickness of the stone to be removed, two types of planes can be used, namely: toothed planes for roughing stone by planing a lot of material; toothless planes for giving the stone a smooth appearance.

[0007] So, depending on the shape that the stonemason wishes to obtain, he can use different planes, including: straight planes; hollow planes; round planes; curved planes. Each of these planes can also have different blade widths.

[0008] As a result, a stonemason usually carries a box containing a large number of planes. Such a loaded box can therefore be relatively heavy.

[0009] Of course, in the long run, transporting these heavy crates can cause musculoskeletal disorders. In addition, it is sometimes necessary for the stonemason to work at heights, making it difficult, if not impossible, to have all the planes within reach.

[0010] This can be a hassle when a specific plane is needed and the stonemason doesn't have it nearby. The stonemason then has to go back down to his vehicle to get the necessary plane and then go back up to the work site to use it.

[0011] In the long term, this can slow down the work and tire the stonemason even more.

[0012] Furthermore, the forces caused by scraping the stones cause the blades to move in relation to the body.

[0013] As a result, the blades can become detached from the body or, in the worst case, adopt an unsuitable position which can lead to creating a notch in the stone being worked.

[0014] When one of the blades has play with the body, it is then necessary to change the entire plane even though some blades, or even all of the blades, could still be used.

[0015] Finally, when the blades are force-fitted onto the wooden body, it can be difficult to ensure their correct orientation.

[0016] Another solution would be to resharpen the blades to achieve alignment once the blades are mounted on the body, but this requires time that stone cutters generally do not have.

[0017] Also, it is usually necessary to acquire several years of experience before being able to assemble a plane correctly.

[0018] A planer according to the preamble of claim 1 is known from document FR2651459A1.

[0019] The invention aims in particular to overcome the drawbacks of the prior art.

[0020] More specifically, the invention aims to provide a planer whose positioning of the blades on the body guarantees the correct alignment of the blades, quickly and simply.

[0021] The invention also aims to provide a plane that limits the number of tools to be transported and, consequently, the weight of the box that the stonemason must transport to use all the planes he wishes to have.

[0022] The invention further aims to provide such a planer which is simple to use.

[0023] These objectives, as well as others which will appear subsequently, are achieved thanks to the invention which relates to a planer comprising: a body, a plurality of blades mounted on the body, each blade having a fixing portion, the body including a first part integrating, for each blade, a first fixing member intended to cooperate with the fixing portion to form a sliding connection along an axis of insertion of the blade into the first part; characterized in that the body comprises a second part integrating, for each blade, a second fixing member intended to cooperate with the fixing portion to block the blade relative to the body, along the insertion axis, means for assembling the first part with the second part.

[0024] Thanks to the two-part body and the sliding connection, the blades can be adjusted effortlessly and quickly.

[0025] Therefore, the planer according to the invention allows significant time to be saved on a construction site, while increasing work efficiency since the blades are correctly positioned on the body.

[0026] Furthermore, the blades are easily assembled on the body and can be changed as needed.

[0027] In fact, a stonemason simply needs to dismantle the body to quickly remove the installed blades and exchange them for new blades or blades of another type.

[0028] This also allows the stonemason to only carry the blades when his site is at height, which makes his work easier and reduces the risk of musculoskeletal disorders.

[0029] According to an advantageous aspect, the first part forms a base for receiving the second part, and each first fixing member is in the form of a slot intended to be crossed by the fixing portion of a blade.

[0030] The slot makes it easier to fit the blades into the first part of the body, since the stonemason only has to insert the blades into the first part of the body using a translational movement.

[0031] Furthermore, using the first part of the body as a base for the second part makes it more convenient to assemble the body since the stonemason is guided in assembling the body knowing that the second part comes on top of the first part.

[0032] According to another advantageous aspect, the first part carries at least one stop for pushing the blade along the insertion axis.

[0033] The thrust stop(s) ensure that a working portion of the blades is always outside the body.

[0034] In addition, the insertion stop(s) make the work of the stonemason easier, as he knows that the blades are correctly inserted as soon as they are resting on the stop(s).

[0035] According to another advantageous aspect, the second part of the body forms a gripping member of the plane, and each second fixing member is in the form of at least one projection cooperating with a notch of the fixing portion of a blade.

[0036] Using the second part as a handle allows for a holding force to be exerted on each projection in cooperation with each notch in the blades when the stonemason grips the plane.

[0037] Thus, if the assembly means are poorly positioned or absent, then the blade remains in position in the body by the tightening exerted to grip the object.

[0038] According to another advantageous aspect, the second part of the body comprises a first shell and a second shell intended to close the first shell.

[0039] Using both shells makes it easy to assemble the second body part.

[0040] Indeed, when the first shell is in position on the first part, the blades are then held in the body. Thus, the stonemason only has to position the second shell to close the first shell and thus keep the blades attached to the body.

[0041] According to another advantageous aspect, the fixing portion of each blade comprises two notches and each of the first shell and the second shell has a projection intended to cooperate with one of the notches.

[0042] The presence of the two projections further ensures that the blades are held in the body.

[0043] In fact, the projections being directed towards each other, they act in compression on the blade to ensure that it is held in the body.

[0044] According to another advantageous aspect, the body comprises a plurality of sections abutting each other.

[0045] It is then possible to adapt the size of the plane according to the task to be carried out by the stonemason.

[0046] According to another advantageous aspect, each section has at least one assembly face provided with a male assembly member, or a female assembly member.

[0047] The male and female assembly parts allow for quick and easy assembly as they avoid any risk of error during assembly.

[0048] According to another advantageous aspect: the male assembly member is in the form of a pin having a connecting rod to the assembly face and a head, and the female assembly member is in the form of an opening complementary in shape to the head of the pin, made in the assembly face, and the head has a contour having at least one flat.

[0049] This architecture allows for a quarter-turn type assembly, which does not require the use of tools and offers good robustness allowing the stonemason to work in complete safety.

[0050] Other characteristics and advantages of the invention will appear more clearly on reading the following description of preferred embodiments of the invention, given as illustrative and non-limiting examples, and the appended drawings among which: there figure 1 is a schematic perspective representation of a planer according to the invention; the figure 2 is a schematic representation in exploded view of a body of the planer according to the invention; the figure 3 is a perspective representation of a blade of the plane according to the invention; the figure 4 is a schematic representation of a front view in exploded view of a planer according to the invention; the figure 5 is a schematic perspective representation of a body of the planer according to the invention, the body having a plurality of sections.

[0051] In reference to the figure 1 , a planer 100 according to the invention is illustrated.

[0052] The planer 100 comprises a body 200 and a plurality of blades 300 for mounting on the body 200.

[0053] In reference to the figure 3 , each blade 300 has a fixing portion 310 and a working portion 320 intended to extend beyond the body 200.

[0054] To enable the blades 300 to be fixed to the body 200, the body 200 comprises: a first part 210; a second part 220; means 230 for assembling the first part 210 with the second part 220.

[0055] As illustrated by the figures 2 And 4 , the first part 210 integrates, for each blade 300, a first fixing member 240 intended to cooperate with the fixing portion 310.

[0056] The cooperation between a first fixing member 240 and the fixing portion 310 of a blade 300 forms a sliding connection along an insertion axis A of the blade in the first part 210.

[0057] As will be explained below, the first part 210 of the body 200 forms a base for receiving the second part 220.

[0058] Each first fixing member 240 is in the form of a slot intended to be crossed by the fixing portion 310 of a blade 300.

[0059] As illustrated by the figure 4 , the first part 210 of the body 200 carries at least one stop 241 for driving the blade 300 along the insertion axis A.

[0060] The fixing portion 310 of the blades 300 has at least one imprint 340 intended to cooperate with a stop 241.

[0061] In reference to the figure 3 , the fixing portion 310 of each blade 300 has a notch 330 intended to extend above the first part of the body 200 along the insertion axis A when the blade 300 is inserted into the first part 210 of the body 200.

[0062] In reference to the figures 2 And 4 , the second part 220 of the body 200 integrates for each blade 300 a second fixing member 250, intended to cooperate with the fixing portion 310 of each blade 300 to block the blades 300 relative to the body 200 along the insertion axis A.

[0063] In more detail, the second fixing member 250 is in the form of at least one projection cooperating with a notch 330 of the fixing portion 310 of a blade 300.

[0064] As illustrated by the figures 2 And 4 , the second part 220 of the body 200 comprises a first shell 221 and a second shell 222 intended to close the first shell 221.

[0065] At least one of the first shell 221 and the second shell 222 comprises a threaded insert 231 allowing the fixing, through a counterbored hole 232 carried by the other of the second shell 222 and the first shell 221, of the fixing means 230 which then take the form of screws.

[0066] In reference to the figure 1 , the second part 220 of the body 200 forms a gripping member of the planer 100 allowing a user to handle it easily.

[0067] As illustrated by the figure 5 , the second part of the body 200 may have a handle P facilitating the gripping of the planer 100 by a user.

[0068] In reference to the figures 3 And 4 , the fixing portion 310 of each blade 300 comprises two notches 330 opposite each other with respect to the insertion axis A.

[0069] As seen on the figure 4 , each of the first shell 221 and the second shell 222 has a projection intended to cooperate with one of the notches 330.

[0070] In other words, the second fixing member 250 is carried by each of the first shell 221 and the second shell 222 of the body 200.

[0071] The cooperation between the second fixing member 250 and the fixing portion 310 of the blade is male / female type.

[0072] According to the embodiment illustrated by the figures 2 à 4 , the female part is formed by the notches 330 of the blades 300 and the male part is formed by the second fixing member 250, that is to say by the projection(s) carried by the second part 220 of the body 200.

[0073] Alternatively, male / female cooperation could be reversed.

[0074] In other words, the notches could be carried by the second part 220 of the body 200 and the projections could be carried by the fixing portion 310 of the blades 300.

[0075] In reference to the figure 5 , the body 200 comprises a plurality of sections T abutting each other.

[0076] On the figure 1 , the plane 100 illustrated is a simple type plane, that is to say whose body 200 comprises a single section T.

[0077] For large-scale work, for example, a planer 100 having a body 200 comprising a plurality of sections T could be preferred.

[0078] To enable them to be assembled with each other, each section T has at least one assembly face 270 provided with a male assembly member 271 or a female assembly member 272.

[0079] In reference to the figure 2 , the male assembly member 271 is in the form of a pin having a rod 2711 for connections to the assembly phase 270 and a head 2712.

[0080] Head 2712 has a contour having at least one flat.

[0081] According to the embodiment illustrated by the figure 1 , the outline of the head 2712 is diamond-shaped with rounded corners.

[0082] In reference to the figure 2 , the female assembly member 272 is in the form of an opening complementary in shape to the head 2712 of the pin.

[0083] This opening is made in assembly phase 270.

[0084] To assemble several sections T, it is then appropriate to insert the head 2712 of a pin into a hole forming the female assembly member 272 and then to pivot, relative to each other, the two sections T so that the head 2712 of the pin is blocked by the contours of the opening forming the female assembly member 272.

[0085] Furthermore, the assembly face 270 having a female assembly member 272 may have a rotation stop 273 for the two sections T relative to each other. This makes it possible in particular to guarantee the correct positioning of two sections T relative to each other when they are assembled. Furthermore, this ensures the correct positioning of all the blades 300 of the planer 100 relative to each other.

[0086] In reference to the figure 4 , the assembly of a planer 100 according to the invention is carried out as follows.

[0087] First, the fixing portion 310 of each blade 300 is inserted into a first fixing member 240 of the first part 210 of the body 200.

[0088] This first step has the effect of only allowing the movement of the blades 300 relative to the first part 210 of the body 200 according to a translational movement M1 along the insertion axis A.

[0089] Subsequently, the first shell 221 and the second shell 222 are brought onto the first part 210 of the body 200, according to the translational movements M2 and M3, so that the first part 210 supports the second part 220 of the body.

[0090] This has the effect of engaging the projections forming the second fixing member 250 of the second part 220 of the body 200 in each notch 330 of the fixing portion 310 of the blades 300.

[0091] Thus, the cooperation between the second fixing member 250 and each notch 330 makes it possible to block the blades 300 relative to the body 200 along the insertion axis A.

[0092] To finalize the assembly of the planer 100, the fixing means 230 are then used to lock the first shell 221 and the second shell 222 relative to each other.

[0093] This has the effect of maintaining and blocking the first part 210 of the body 200 relative to the second part 220.

[0094] Indeed, the first part 210 is blocked on the blades 300 by the presence of the second part 220 of the body 200, and of each stop 241 which is received in an imprint 340 of a blade 300.

[0095] The planer 100 according to the invention can thus be easily and quickly adapted to different types of work by a rapid change of the blades 300 and / or by the constitution of a body 200 comprising a plurality of sections T.

[0096] This then makes the work of stonemasons easier, as they can use a number of different tools in a single tool when working at height.

[0097] In fact, stone cutters only need to carry a box containing different types of blades 300 which can be mounted on the same body 200 of the planer 100 quickly and easily.

Claims

1. A planer (100) comprising: - a body (200), - a plurality of blades (300) mounted on the body (200), each blade (300) having a fastening portion (310), the body (200) comprising: - a first portion (210) integrating, for each blade (300), a first fastening member (240) intended to cooperate with the fastening portion (310) to form a sliding connection according to an axis of insertion (A) of the blade (300) into the first portion (210); characterised in that the body (200) comprises: - a second portion (220) integrating, for each blade (300), a second fastening member (250) intended to cooperate with the fastening portion (310) to block the blade (300) with respect to the body (200), according to the insertion axis (A), - means (230) for assembling the first portion (210) with the second portion (220).

2. The planer (100) according to claim 1, characterised in that the first portion (210) forms a stand for receiving the second portion (220), and each first fastening member (240) is in the form of a slot intended to be crossed by the fastening portion (310) of a blade (300) .

3. The planer (100) according to the preceding claim, characterised in that the first portion (210) carries at least one insertion stop (241) of the blade (300) according to the insertion axis (A).

4. The planer (100) according to any one of the preceding claims, characterised in that the second portion (220) of the body (200) forms a gripping member (100) of the planer, and in that each second fastening member (250) is in the form of at least one projection cooperating with a notch (330) of the fastening portion (310) of a blade (300) .

5. The planer (100) according to any one of the preceding claims, characterised in that the second portion (220) of the body (200) comprises a first shell (221) and a second shell (222) intended to close the first shell (221) .

6. The planer (100) according to claims 3 and 4, characterised in that the fastening portion (310) of each blade (300) comprises two notches (330) and in that each of the first shell (221) and the second shell (222) has a projection intended to cooperate with one of the notches (330) .

7. The planer (100) according to any one of the preceding claims, characterised in that the body (200) comprises a plurality of sections (T) butted to each other.

8. The planer (100) according to the preceding claim, characterised in that each section (T) has at least one assembly face (270) provided with a male assembly member (271), or with a female assembly member (272).

9. The planer (100) according to the preceding claim, characterised in that the male assembly member (271) is in the form of a pin having a rod (2711) for connection to the assembly face (270) and a head (2712), and the female assembly member (272) is in the form of an opening with a shape complementary to the head (2712) of the pin, formed in the assembly face (270).

10. The planer (100) according to the preceding claim, characterised in that the head (2712) has a contour with at least one flat surface.